700R4 Rebuild Section 2


This is the Reaction Shell (68) installed with a new Thrust Washer (67). This washer is copper plated and could gall against the steel so plenty of goop (the tranny fluid/vasoline mixture) is used.

This is a look at the Input carrier assy (60), the input internal gear (62), and the reaction carrier shaft (64).

The installation is fairly straight forward here, it's just taking the time and making sure everything is mated correctly to the corresponding parts. The picture shows the top of the input internal gear (62).

Once the above procedure is done, the Output Shaft (86) is installed through the back of the transmission and the attaching Output Shaft Snap Ring (59) is installed and double checked to make sure it locked.

Here is a view of the 3-4 plate assy (52) soaking in transmission fluid. All the friction material parts should be soaked first for at least a half hour to help with the first time start up operations. If these pieces are left dry, they would probably stick to their corresponding plates and then the instant they were engauged would shed the material off and circulate through the system finishing off an already ruined transmission.

Here is a view of the Input Housing (21) with the 3-4 Clutch Piston (23), 3-4 Clutch Apply Ring (25), 3-4 Clutch Spring Assy (26), Forward Clutch Housing (28), Forward Clutch Piston (30), and the Overrun Clutch Piston (32) installed with the Overrun Clutch Spring Assy (34) and the Snap Ring (35) locked in after the unit is placed in the press and compressed down. Again, lots of goop is used on the new seals to make assemby and break in hastle free.

Again this is where the special tools come in. We have installed the Reverse Input Clutch Plate Assy (12), and the Reverse Input Backing Plate (13). In the middle you can see the Clutch Spring Assy (9).

At this point, we have installed, measured clearances, and double checked everything in the Input Housing (21) up to the Forward Clutch outer race (42). Next will be another clutch pack.

Some components look just like others but have to be installed in a certain order so extreme care and attention to detail is critical. At this point, one of the installed Forward Clutch Plate Assy (47) components is a Waved Plate (46) This looks just like the others except for an intentional bend in 4 areas of the plate to simulate kind of a flat spring. Putting this in the wrong place would create disastrous results.

Finally I install all the frictions plates and hardware up to the 3-4 Clutch Backing Plate (53) and finally the 3-4 Clutch Snap Ring (54).

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